Python Generator Patterns

A guide to processing data lazily with Python generators for memory-efficient iteration and data pipeline construction.

Usage

Ask about generators, lazy evaluation, itertools, or data pipeline patterns.

Examples

• "Create a generator pipeline for processing log files"
• "How do I use yield from for generator delegation?"
• "Build a paginated API consumer with generators"

Guidelines

• Use generators for processing large datasets that don't fit in memory
• Use generator expressions for simple one-line generators
• Use yield from to delegate to sub-generators
• Combine generators with itertools for powerful data pipelines
• Use async generators for streaming async data sources